R-32 PT Chart

R-32 saturation pressure, −40 to 150 °F−40 to 65 °C. Used in ductless and newer residential A/C and heat pumps.

How to use ↓

Safety class A2LSingle component (HFC)No glideNo glide

PT lookup

Step 1 Refrigerant

Step 2 I know the

Temperature Pressure

Step 3 Temperature

°F°C

Type a temperature to see the saturation pressure.

R-32 pressure temperature table

Highlighted: 40 °F and 100 °F.Negative kPa = vacuum. Highlighted: 4 °C and 38 °C.

R-32 saturation pressure by temperature, °F and psig (vacuum in inches of mercury)
°F	Pressure psig
-40	11.0
-39	11.7
-38	12.4
-37	13.0
-36	13.7
-35	14.4
-34	15.2
-33	15.9
-32	16.6
-31	17.4
-30	18.2
-29	19.0
-28	19.8
-27	20.6
-26	21.5
-25	22.3
-24	23.2
-23	24.1
-22	25.0
-21	25.9
-20	26.8
-19	27.8
-18	28.7
-17	29.7
-16	30.7
-15	31.7
-14	32.8
-13	33.8
-12	34.9
-11	36.0
-10	37.1
-9	38.2
-8	39.4
-7	40.5
-6	41.7
-5	42.9
-4	44.2
-3	45.4
-2	46.7
-1	47.9
0	49.3
1	50.6
2	51.9
3	53.3
4	54.7
5	56.1
6	57.5
7	59.0
8	60.5
9	62.0
10	63.5
11	65.0
12	66.6
13	68.2
14	69.8
15	71.4
16	73.1
17	74.8
18	76.5
19	78.3
20	80.0
21	81.8
22	83.6
23	85.5
24	87.3
25	89.2
26	91.1
27	93.1
28	95.1
29	97.1
30	99.1
31	101.1
32	103.2
33	105.3
34	107.5
35	109.7
36	111.9
37	114.1
38	116.3
39	118.6
40	121.0
41	123.3
42	125.7
43	128.1
44	130.5
45	133.0
46	135.5
47	138.0
48	140.6
49	143.2
50	145.8
51	148.5
52	151.2
53	153.9
54	156.7
55	159.5
56	162.4
57	165.2
58	168.1
59	171.1
60	174.0
61	177.1
62	180.1
63	183.2
64	186.3
65	189.5
66	192.7
67	195.9
68	199.2
69	202.5
70	205.8
71	209.2
72	212.6
73	216.1
74	219.6
75	223.2
76	226.7
77	230.4
78	234.0
79	237.7
80	241.5
81	245.3
82	249.1
83	253.0
84	256.9
85	260.9
86	264.9
87	268.9
88	273.0
89	277.1
90	281.3
91	285.5
92	289.8
93	294.1
94	298.5
95	302.9
96	307.4
97	311.9
98	316.4
99	321.0
100	325.7
101	330.4
102	335.1
103	339.9
104	344.8
105	349.6
106	354.6
107	359.6
108	364.6
109	369.7
110	374.9
111	380.1
112	385.3
113	390.7
114	396.0
115	401.4
116	406.9
117	412.4
118	418.0
119	423.6
120	429.3
121	435.1
122	440.9
123	446.8
124	452.7
125	458.7
126	464.7
127	470.8
128	477.0
129	483.2
130	489.5
131	495.8
132	502.2
133	508.7
134	515.2
135	521.8
136	528.5
137	535.2
138	542.0
139	548.8
140	555.8
141	562.8
142	569.8
143	576.9
144	584.1
145	591.4
146	598.7
147	606.2
148	613.6
149	621.2
150	628.8

R-32 saturation pressure by temperature, °C and kPa (negative = vacuum)
°C	Pressure kPa
-40	76.1
-39	84.3
-38	92.8
-37	101.5
-36	110.6
-35	120.1
-34	129.8
-33	139.9
-32	150.3
-31	161.0
-30	172.1
-29	183.6
-28	195.4
-27	207.6
-26	220.2
-25	233.2
-24	246.6
-23	260.4
-22	274.7
-21	289.3
-20	304.4
-19	320.0
-18	336.0
-17	352.4
-16	369.3
-15	386.7
-14	404.6
-13	423.0
-12	441.9
-11	461.4
-10	481.3
-9	501.8
-8	522.8
-7	544.4
-6	566.5
-5	589.3
-4	612.6
-3	636.4
-2	660.9
-1	686.0
0	711.8
1	738.1
2	765.1
3	792.8
4	821.1
5	850.1
6	879.8
7	910.2
8	941.3
9	973.1
10	1005.6
11	1038.8
12	1072.9
13	1107.6
14	1143.2
15	1179.5
16	1216.6
17	1254.5
18	1293.3
19	1332.8
20	1373.2
21	1414.5
22	1456.6
23	1499.6
24	1543.5
25	1588.3
26	1634.0
27	1680.6
28	1728.2
29	1776.7
30	1826.2
31	1876.6
32	1928.1
33	1980.5
34	2034.0
35	2088.5
36	2144.1
37	2200.7
38	2258.3
39	2317.1
40	2377.0
41	2438.0
42	2500.1
43	2563.4
44	2627.8
45	2693.5
46	2760.3
47	2828.3
48	2897.6
49	2968.1
50	3039.9
51	3113.0
52	3187.4
53	3263.1
54	3340.1
55	3418.6
56	3498.4
57	3579.6
58	3662.2
59	3746.3
60	3831.9
61	3919.0
62	4007.6
63	4097.8
64	4189.6
65	4282.9

Back to the lookup ↑

R-32 PT Chart

°F / psig · Safety class A2L · Single component (HFC)

refrigerantptchart.com

°F	psig
-40	11.0
-39	11.7
-38	12.4
-37	13.0
-36	13.7
-35	14.4
-34	15.2
-33	15.9
-32	16.6
-31	17.4
-30	18.2
-29	19.0
-28	19.8
-27	20.6
-26	21.5
-25	22.3
-24	23.2
-23	24.1
-22	25.0
-21	25.9
-20	26.8
-19	27.8
-18	28.7
-17	29.7
-16	30.7
-15	31.7
-14	32.8
-13	33.8
-12	34.9
-11	36.0
-10	37.1
-9	38.2
-8	39.4
-7	40.5
-6	41.7
-5	42.9
-4	44.2
-3	45.4
-2	46.7
-1	47.9
0	49.3
1	50.6
2	51.9
3	53.3
4	54.7
5	56.1
6	57.5
7	59.0

°F	psig
8	60.5
9	62.0
10	63.5
11	65.0
12	66.6
13	68.2
14	69.8
15	71.4
16	73.1
17	74.8
18	76.5
19	78.3
20	80.0
21	81.8
22	83.6
23	85.5
24	87.3
25	89.2
26	91.1
27	93.1
28	95.1
29	97.1
30	99.1
31	101.1
32	103.2
33	105.3
34	107.5
35	109.7
36	111.9
37	114.1
38	116.3
39	118.6
40	121.0
41	123.3
42	125.7
43	128.1
44	130.5
45	133.0
46	135.5
47	138.0
48	140.6
49	143.2
50	145.8
51	148.5
52	151.2
53	153.9
54	156.7
55	159.5

°F	psig
56	162.4
57	165.2
58	168.1
59	171.1
60	174.0
61	177.1
62	180.1
63	183.2
64	186.3
65	189.5
66	192.7
67	195.9
68	199.2
69	202.5
70	205.8
71	209.2
72	212.6
73	216.1
74	219.6
75	223.2
76	226.7
77	230.4
78	234.0
79	237.7
80	241.5
81	245.3
82	249.1
83	253.0
84	256.9
85	260.9
86	264.9
87	268.9
88	273.0
89	277.1
90	281.3
91	285.5
92	289.8
93	294.1
94	298.5
95	302.9
96	307.4
97	311.9
98	316.4
99	321.0
100	325.7
101	330.4
102	335.1
103	339.9

°F	psig
104	344.8
105	349.6
106	354.6
107	359.6
108	364.6
109	369.7
110	374.9
111	380.1
112	385.3
113	390.7
114	396.0
115	401.4
116	406.9
117	412.4
118	418.0
119	423.6
120	429.3
121	435.1
122	440.9
123	446.8
124	452.7
125	458.7
126	464.7
127	470.8
128	477.0
129	483.2
130	489.5
131	495.8
132	502.2
133	508.7
134	515.2
135	521.8
136	528.5
137	535.2
138	542.0
139	548.8
140	555.8
141	562.8
142	569.8
143	576.9
144	584.1
145	591.4
146	598.7
147	606.2
148	613.6
149	621.2
150	628.8

Bold rows: 40 °F and 100 °F. Reference only: always verify with the manufacturer’s data and your gauges.

R-32 PT Chart

°C / kPa (gauge) · Safety class A2L · Single component (HFC)

refrigerantptchart.com

°C	kPa
-40	76.1
-39	84.3
-38	92.8
-37	101.5
-36	110.6
-35	120.1
-34	129.8
-33	139.9
-32	150.3
-31	161.0
-30	172.1
-29	183.6
-28	195.4
-27	207.6
-26	220.2
-25	233.2
-24	246.6
-23	260.4
-22	274.7
-21	289.3
-20	304.4
-19	320.0
-18	336.0
-17	352.4
-16	369.3
-15	386.7
-14	404.6
-13	423.0
-12	441.9
-11	461.4
-10	481.3
-9	501.8
-8	522.8
-7	544.4
-6	566.5
-5	589.3

°C	kPa
-4	612.6
-3	636.4
-2	660.9
-1	686.0
0	711.8
1	738.1
2	765.1
3	792.8
4	821.1
5	850.1
6	879.8
7	910.2
8	941.3
9	973.1
10	1005.6
11	1038.8
12	1072.9
13	1107.6
14	1143.2
15	1179.5
16	1216.6
17	1254.5
18	1293.3
19	1332.8
20	1373.2
21	1414.5
22	1456.6
23	1499.6
24	1543.5
25	1588.3
26	1634.0
27	1680.6
28	1728.2
29	1776.7
30	1826.2
31	1876.6

°C	kPa
32	1928.1
33	1980.5
34	2034.0
35	2088.5
36	2144.1
37	2200.7
38	2258.3
39	2317.1
40	2377.0
41	2438.0
42	2500.1
43	2563.4
44	2627.8
45	2693.5
46	2760.3
47	2828.3
48	2897.6
49	2968.1
50	3039.9
51	3113.0
52	3187.4
53	3263.1
54	3340.1
55	3418.6
56	3498.4
57	3579.6
58	3662.2
59	3746.3
60	3831.9
61	3919.0
62	4007.6
63	4097.8
64	4189.6
65	4282.9

Bold rows: 4 °C and 38 °C. Reference only: always verify with the manufacturer’s data and your gauges.

How to use

Choose Temperature or Pressure and type the number. The answer shows straight away.
Blends show two values: use vapor (dew) for superheat and liquid (bubble) for subcooling.
Tap °C · kPa for metric. Below 0 psig, pressure is in inches of mercury (inHg) vacuum.
Press Print pocket chart for a one-page chart (Letter or A4) for the van or the tool bag.

About this R-32 chart

This R-32 pressure temperature chart gives the saturation pressure for every degree, in psig with °F or kPa (gauge) with °C.

Source: manufacturer and supplier charts (Chemours, Arkema, A-Gas), checked against NIST. Reference only: always verify with the manufacturer’s data and your gauges.

FAQ

What is the R-32 pressure at 40 °F?

121.0 psig at saturation, from the table above.

What is the R-32 pressure at 100 °F?

325.7 psig at saturation.

Does R-32 have glide?

No. R-32 is a single-component refrigerant, so one saturation pressure works for both superheat and subcooling.

R-32 PT Chart

PT lookup

R-32 pressure temperature table

How to use

About this R-32 chart

FAQ

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